Dugald scott



l v 2 Sheets-Sheet 1. nsooTT. LAPPET LOOM..

.(No Model.)

l Ng. 567,923. Patenwd Sept. 15, 1896.

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(No Model.)

AD.sGoTT. LAPPET LOOM.

No. 567,923. Patented Sept. 15, 1896. t

-NITED STATES DUGALD SOOTT, OF MANCHESTER, ENGLAND, ASSIGNOR TO JONESBROTHERS dz OO.,

OE SAME PLACE.

ALAPPr-:r-I oorvs.

SPECIFICATION forming part of Letters Patent No. 567,923, datedSeptember 15, 1896. Application filed May 14, 1895. Serial No. 549,301.(No model.)

To @ZZ whom t may oon/cern.-

Beit known that I, DUGALD SCOTT, mer-v chant and manufacturer, a'subject of the Queen of Great Britain, residing at 12 York Street,Manchester, in the county of Lancaster, England, have inventedImprovements in Lappet-Looms, of which the following is a specification.

This invention relates to improvements in lappet-looms, and has for itsobject the providing of such novel attachments and cornbination of partsas will render that class of looms to which the invention relatescapable of producing designs upon woven fabrics in such a manner as willbehereinafter more fully described.

The lappet-needles of the loom herein described are each independentlyconnected to one of the hooks of a jacquard.

The lappet ends are brought to the needles from a creel or bobbins orfrom beams, and each end is passed over two tension-rods, one of whichis` carried at each end by a bellcranked lever, and through a lingo orheald between the rods, the said lingo bein graised by the same hookwhich raises its corresponding lappet-needle in order to slaoken thetension on thelappet end when it is raised, each end having thus aseparate tension.

The bellcrank levers which carry the above-named tension-rods areconnected, say, by cords or otherwise to the slay or other equivalentpart, so that as it beats up the said tension-rod is depressed, (becauseall the needles pass under the woven fabric,) and as soon as the slayreturns and the needles rise again the tension-rod is returned bysprings to its former position and takes up the slack.

The traverse of the bar through which the needles work is or may beobtained and reg ulated by means hereinafter referred to and described.

In order that my present invention may be easily understood and readilycarried into practice, I will proceed to further describe same withreference to the drawings hereunto annexed.

Figure l is a side view of a loom with independent lappet-needles. Fig.2 is a local or partial front elevation showing the independent needlesin position. Fig. 3 isadiagram showing the independent lappet-needle andcourse of Jthe lappet end thereto, and also illustrating the tensiondevice or arrangement for tightening and slackening the lappet end. Eig.4 shows the means for regulating the shog or means for limiting -the endmotion to be imparted to the needle-bar. Fig. 5 is a diagram showing theordinary means of imparting the traverse or shog motion to saidneedle-bar.

Similar letters of reference indicate corresponding parts throughout.

a is the ordinary loom-frame, of Vany suitable form, in` which theordinary slay-frame swings or is rocked on the axis l), and is operatedin the ordinary or any suitable manner, this not forming any part of mypresent invention.

c is the grid fixed to the slay-sword d,

through which grid each of the lappet-needles can freely andindependently rise.` In the oase illustrated this grid is dovetailed inthe slay-sword d, so that it may, if desired, be capable of movement endwise and thereby impart side motion or slue tothe points ofall thelappetneedles c simultaneously.

f is the needle `bar or rail, through which the needles e can freelyrise, which bar f in the case illustrated is arranged and adapted toreceive Vendwise motion, as hereinafter eX- plained.

g is the reed.

h is the ordinary hand-rail.

' i i isthe slay.

` j is a slotted bar capable of being adj ustably fixed to theneedle-bar f, as shown in Fig. 4, and having the projection j thereon,which operates between the fixed bracket 7c, carried on the slay fi, andthe adjustable bracket Z, which has turned-over end Z thereto and isslotted and adjustable upon the fixed bracket 7a by means of the clamping-screw Z2 or other suitable means.

m m are the ordinary weighted cords or straps for imparting to-and-fromovement to the needle-bar f. The means for imparting motion to thecords m m, through which toand-fro motion is transmitted to theneedlebar, consists of the following mechanism: Mounted on the shaft pare two eccentrics p', and fulcrumed at `x are two levers S. Now,

Ioo p on the ends of the arms s of each of the levers is a rollers, Bythe action of the weight y, attached to the arms s2 of the levers, theserollers are kept in constant contact with the periphery of theeccentrics p', and as the shaft p revolves, noting that the eccentricsare mounted diametrically opposite each other, it will be readily seenthat an up-anddown motion will be imparted alternately to the ends ofthe weight-arms of the respective levers. The cords m m being connectedto the ends of the weight-arms of the levers and to the needle-bars, ato-and-fro horizontal motion will be necessarily imparted to theneedle-bars as the weight ends of the levers ascend and descend. Asimilar movement may be imparted to the grid by a similar mechanism.Vvvhen endwise motion is thus imparted to the barjthe extent of suchmotion is limited by the distance of the end Z from the end 7a of saidbracket 7c, which limits the travel ofthe devicej, Iixed to the bar f,while the adjustment of the devicej upon the bar f permits the exactadjustment ofthe needles to any desired point.

a is a cord or connection from each needle e to the hook of any suitablepattern-producing apparatus--advantageously a Jacquard machinea separateand independent cord a being brought from each needle c to a separateand independent hook in such apparatus, or several of these cords n maybe connected up to one hook in such apparatus.

a is a separate cord or equivalent connected to the saine hook as thecord 1t, and carries an eye n2, through which the lappet end o is led onits way from the reel or bobbin o to the needle c, and this cord 'a'carries the lingo n3 or is otherwise suitably weighted. Thus each lappetend o is independently led through an eye n2, independently connected,together with its corresponding needle e, to the hook of the jacquard orequivalent, and by passing this end 0 over two bars or supports p q thelingo n3 causes a depression in the end o, as shown in Fig. 3, whiledirectly the jacquard simultaneously lifts the cords In anda the eye n2is correspondingly raised with the needle to which it guides the lappetends o and thus slackens the latter corresponding to the amount of riseimparted to the said needle and again simultaneously takes up the slackwhen the needle falls. In order to again slacken the lappet end 0, atthe moment when the needle goes under the fabric at the beat up thewhole of the lappet ends are passed over the bar or support q, whichextends across the loom to include all the warp ends (and passing underall the lappet ends o) and is carried at each end by the bell-cranklevers i, pivoted at a" to the frame of the loom. s is a cord orconnection from the slay-frame to the free end of said bell-crank leverso" at each end of said bar q, the length of this cord s being such thatsame only tightens j ust-before the nee- Ydle-s epass under the fell ofthe cloth, and

thus it will readily be seen that the bar q is lowered andtherebyslackens the whole of the lappet ends 0, While on the returnmovement of the slay-frame the spring t, connected to the bar q, liftsthe same up as the cord s is slackened and thereby takes up the slack inthe ends o caused by the rearward movement or return of the slay as theneedles come from under the fell of the cloth.

u a are the warp ends, controlled by the shafts or healds o, operated inthe usual manner to produce a plain cloth, or the warp ends may beguided or controlled in any other desired and suitable manner.

w is a coarse reed through which the lappet ends o are guided and keptseparate as they come from the reel o or from any other suitable device,crecl, bobbin, beam, or the like.

x is a false reed ordinarily used in lappetweaving machines for guidingthe shuttle.

It will thus be seen that by the employment in lappet-looms of such atension device as has been described above and the combination therewithof a set of independentlyactuated lappet-needles carried in the novelmanner described will render the looms embodying these improvementscapable of producing a great variety of ornamental effects in a veryefiicient manner.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-

l. In a tension device for lappet-looms the combination of a slayprovided with a rail h, two bell-crank levers, a rod 0 to which they arefulcrumed, a flexible connection between one of the arms of each of saidlevers and the rail 7t,a tension-rod q carried by the other arms of saidlevers, a spring acting on said lastnamed arms to turn the bell-cranksin opposition to their connection with the rail h, cords n, providedwith eyes n2 and weights n3, lappet-needles carried by the slay andmeans for operating the needles and cords n.

2. The combination with a lappet-loom, of a needle-bar f capable ofhorizontal movement; a slotted stop j adj ustably mounted on saidneedle-bar; the xed bracket 7c mounted on the slay and extendingalongside and in front of the slotted stop j; and adjustable bracket Zprovided with a slot and attached to the bracket 7c by means of screwsthrough said slot, the ends Z and 7o of the movable and fixed bracketsadapted to act as stops in arresting the horizontal motion of theneedlebar, and the means for imparting horizontal motion to the saidbar, substantially as described.

DUGALD SCOTT.

Witnesses:

ARTHUR O. HALL, JOHN W. THOMAS.

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